Pressing schedule optimization method for rolling steel in five-pass mode in six-rack cold continuous rolling

Abstract

The invention discloses a reduction schedule optimization method for rolling steel in a five-pass mode in six-rack cold continuous rolling. The reduction schedule optimization method comprises the steps that S1, basic equipment parameters of a six-rack cold continuous rolling unit and related parameters of high-strength steel to be rolled are collected; s2, rolling schedule optimization process parameters are defined according to basic equipment parameters of the six-rack cold continuous rolling unit and related parameters of high-strength steel to be rolled; s3, defining an outlet plate shape of high-strength steel rolled in a five-pass mode based on the six-rack cold continuous rolling unit and a reduction distribution optimization objective function of stable rolling, and then calculating the optimization objective function; and S4, outputting the outlet plate shape of the high-strength steel rolled by adopting the five-pass mode based on the six-rack cold continuous rolling unit and the rolling stability reduction distribution result corresponding to the minimum value of the optimization objective function. According to the method, under the condition that one-pass rolling mode is reduced, the advantages of a small-roller-diameter rolling mill are fully played, and the purposes of reducing energy consumption and improving production efficiency are achieved on the premise that the rolling stability and the quality of finished products are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of high-strength steel cold rolling, and in particular relates to a method for optimizing the reduction schedule of six-stand continuous cold rolling using five-pass mode rolling steel. Background technique [0002] At present, the five-stand cold tandem cold rolling mill, one of the main forces for rolling ultra-thin and high-strength strip steel in China, inevitably has problems such as rolling force exceeding the limit during the rolling process, and the other main force, the single-stand rolling mill, also There are defects such as low production efficiency and unstable rolling. In order to roll thinner and higher-strength plates, a six-stand cold tandem mill has been newly built in the industry for rolling ultra-high-strength steel, of which five stands are conventional rolling mills, and a new small-diameter rolling mill has been added , but in actual production, in order to avoid problems such as exc...

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Problems solved by technology

[0002] At present, the five-stand cold tandem cold rolling mill, one of the main forces for rolling ultra-thin and high-strength strip steel in China, inevitably has problems such as rolling force exceeding the limit during the rolling process, and the other main force, the single-stand rolling mill, also There are defects such as low production efficiency and unstable rolling

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